#include<stdio.h>
#include<stdlib.h>
#include<time.h>
int main()
{
	char arr1[] = "welcome-zhoujunjie-to-qichun";
	char arr2[] = "****************************";
	int left = 0;
	int right = strlen(arr1) - 1;
	while (1)
	{
		if (left <= right)
		{
			Sleep(500);
			arr2[left] = arr1[left];
			arr2[right] = arr1[right];
			printf("%s\n", arr2);
			left++;
			right--;

		}
		else
			break;
	}
}